If you need both the day and date, focus on the Citizen AT8234-85E or CA4610-85A. The smaller CA4750-51E is a Super Titanium Eco-Drive chronograph with a date window only, not a day display. The AT8234-85E adds a perpetual calendar and radio-style time synchronization, while the two B620 models offer a simpler 1/5-second chronograph and a stated 270-day reserve.
Which Citizen Super Titanium chronographs show day and date?
Citizen’s Super Titanium chronograph range is not uniform. Model specifications determine whether the dial shows only the date or both calendar indications:
- CA4750-51E: date only.
- AT8234-85E: day/date, perpetual calendar and synchronized time in 26 cities and time zones.
- CA4610-85A: day/date.
All three use light-powered Eco-Drive technology, but their movements, case sizes and functions differ. “Eco-Drive” describes the charging system; it does not imply identical reserves or complications across the collection.
Specifications at a glance
| Model | Case | Movement | Chronograph | Calendar | Power reserve | Crystal | Water resistance | Listed weight |
|---|---|---|---|---|---|---|---|---|
| CA4750-51E | 40 mm | B620 Eco-Drive | 1/5 second, up to 60 minutes | Date | 270 days | Anti-reflective sapphire | 10 bar | 91 g |
| AT8234-85E | 43 mm | H800 Eco-Drive | 1/20 second, up to 60 minutes | Day/date; perpetual calendar | Not stated on the supplied product specification | Sapphire | WR100/10 bar | Not stated |
| CA4610-85A | 42.5 mm | B620 Eco-Drive | 1/5 second, up to 60 minutes | Day/date | 270 days | Sapphire | 10 bar | 101 g |
Citizen describes Super Titanium as five times harder than stainless steel and 40% lighter. That is a manufacturer specification, not an independent hardness or weight test.
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- Men's luxury timepieces with technical advancements and a sporty style
- 1 Second Chronograph Measures up to 60 Minutes, 12/24 Hour Time, Date
- Silver-Tone Stainless Steel Case
- Mineral Crystal
- 100 Meters Water Resistant and 5 Year Limited Warranty
CA4750-51E: the compact option with date only
At 40 mm and 91 g, the CA4750-51E is the easiest of these three to wear if you prefer a smaller chronograph. Its B620 movement times intervals to 1/5 second for up to 60 minutes, and Citizen states an accuracy of ±15 seconds per month.
What it does well
- Smallest case and lightest listed weight in this comparison.
- 270-day reserve when fully charged, useful for periods away from light.
- Anti-reflective sapphire crystal and 10-bar water resistance.
Its limitation
The calendar is a date display only. Choose another model if seeing the weekday is a requirement.
Rank #2
- Men's luxury timepieces with technical advancements and a sporty style
- 1/5 Second Chronograph Measures up to 60 Minutes, 12/24 Hour Time, Date
- Silver-Tone Stainless Steel
- Spherical Mineral Crystal
- 100 Meters Water Resistant and 5 Year Limited Warranty
AT8234-85E: the most capable day-date chronograph
The 43 mm AT8234-85E is the feature-rich choice. Its H800 movement combines a 1/20-second chronograph (up to 60 minutes), day/date display, perpetual calendar, 12/24-hour indication, power-reserve indicator and time synchronization available in 26 cities and time zones.
Why choose it
- It provides both weekday and date without manual monthly corrections through its perpetual-calendar system.
- The H800 measures elapsed time at finer displayed resolution than the B620’s 1/5-second system.
- Synchronization helps keep the time aligned where a supported city signal is available.
- Sapphire crystal and WR100/10-bar resistance suit everyday wear and surface-water activities within the watch’s instructions.
Important trade-off
Its 43 mm case is the largest here, and the supplied specification does not state a power-reserve figure. Do not substitute the 270-day figure from the B620 models for this H800 watch.
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Rank #3
- Timeless styling that effortlessly takes you from work to play.
- 1 Second Chronograph Measures up to 60 Minutes, 12/24 Hour Time, Date
- Silver-Tone Stainless Steel
- Sapphire Crystal
- 100 Meter Water Resistant and 5 year Limited Warranty
CA4610-85A: straightforward day/date value in B620 form
The 42.5 mm CA4610-85A adds a weekday display to the same broad B620 formula used by the CA4750-51E. It has the 1/5-second, 60-minute chronograph, a stated ±15-seconds-per-month accuracy, 270-day reserve, sapphire crystal and 10-bar resistance.
At 101 g, its listed weight is 10 g more than the 40 mm CA4750-51E. That makes the CA4610-85A the practical pick when day/date matters but radio synchronization and the H800’s extra calendar functions do not.
Rank #4
- With bold design and superior accuracy, Citizen Atomic Timekeeping watches synchronize to an atomic clock with a margin of error of just one second in 100,000 years
- 1 Second Chronograph Measures up to 60 Minutes, Perpetual Calendar, 12/24 Hour Time, Alarm, Power Reserve Indicator, Date
- Two-Tone Stainless Steel
- Luminous Hands and Markers and Anti-Reflective Sapphire Crystal
- 200 Meters Water Resistant and 5 Year Limited Warranty
How long will one run without light?
Citizen states a 270-day power reserve for both B620 models in this comparison: the CA4750-51E and CA4610-85A. That is the movement’s stated reserve after charging; actual results depend on the watch’s charge state and exposure to light before storage.
The AT8234-85E uses the H800 movement, and the supplied specification does not give a reserve duration. Its reserve should therefore be checked in the model’s current regional manual or product documentation rather than inferred from the B620 figures.
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- Citizen Eco-Drive Radio-Controlled Chronograph World Timer; Blue Angels edition with caseback insignia
- Synchronized to Atomic Time Clock for Superior Accuracy, Atomic Timekeeping Technology with Synchronized Time Adjustment Available in 26 Time Zones, 1/20 Second Chronograph Measures up to 60 Minutes, Perpetual Calendar, 12/24 Hour Time, Power Reserve Indicator, Day/Date
- Silver-Tone Stainless Steel
- Anti-Reflective Sapphire Crystal
- 200 Meters Water Resistant and 5 Year Limited Warranty
Eco-Drive recharges from light, so “without light” means the period the stored charge can sustain operation—not a requirement to replace a routine disposable battery. Extended storage should follow Citizen’s charging and storage guidance.
Which model should you buy?
Choose the CA4750-51E if
- You want the smallest, lightest case.
- A date window is sufficient.
- You prefer the simpler B620 layout and a documented 270-day reserve.
Choose the AT8234-85E if
- You want day/date plus a perpetual calendar.
- 1/20-second chronograph resolution and 26-city synchronization matter.
- A 43 mm case suits your wrist.
Choose the CA4610-85A if
- You need both day and date but do not need the H800’s synchronization functions.
- You want a B620 movement with a documented 270-day reserve.
- A 42.5 mm, 101 g watch is comfortable for you.
Buying and listing guidance
For a general search, use Citizen Super Titanium Eco-Drive chronograph watch. Add the exact reference—CA4750-51E, AT8234-85E or CA4610-85A—to avoid confusing date-only and day/date versions. Prices, inventory and regional availability vary and are not established here, so confirm the reference and specification with Citizen or an authorized retailer before ordering.
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